GB2066620B - Microphone arrays - Google Patents

Microphone arrays

Info

Publication number
GB2066620B
GB2066620B GB8040183A GB8040183A GB2066620B GB 2066620 B GB2066620 B GB 2066620B GB 8040183 A GB8040183 A GB 8040183A GB 8040183 A GB8040183 A GB 8040183A GB 2066620 B GB2066620 B GB 2066620B
Authority
GB
United Kingdom
Prior art keywords
microphone arrays
microphone
arrays
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB8040183A
Other versions
GB2066620A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB2066620A publication Critical patent/GB2066620A/en
Application granted granted Critical
Publication of GB2066620B publication Critical patent/GB2066620B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction
    • B06B1/085—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction using multiple elements, e.g. arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Micromachines (AREA)
GB8040183A 1979-12-17 1980-12-16 Microphone arrays Expired GB2066620B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/104,375 US4311874A (en) 1979-12-17 1979-12-17 Teleconference microphone arrays

Publications (2)

Publication Number Publication Date
GB2066620A GB2066620A (en) 1981-07-08
GB2066620B true GB2066620B (en) 1984-07-25

Family

ID=22300166

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8040183A Expired GB2066620B (en) 1979-12-17 1980-12-16 Microphone arrays

Country Status (9)

Country Link
US (1) US4311874A (en)
JP (1) JPS5925554B2 (en)
KR (1) KR850000659B1 (en)
CA (1) CA1166166A (en)
DE (1) DE3046416C2 (en)
FR (1) FR2472326B1 (en)
GB (1) GB2066620B (en)
IT (1) IT1134737B (en)
NL (1) NL181965C (en)

Families Citing this family (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3102208C2 (en) * 1980-01-25 1983-01-05 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Microphone system with adjustable directional characteristics
FR2509938B1 (en) * 1981-04-01 1987-11-13 Trt Telecom Radio Electr ARRANGEMENT OF ACOUSTIC TRANSDUCERS AND USE OF THIS ARRANGEMENT IN A "HANDS-FREE" TELEPHONE SET
US4429189A (en) * 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Electret transducer with a selectively metalized backplate
US4429193A (en) * 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Electret transducer with variable effective air gap
US4434327A (en) * 1981-11-20 1984-02-28 Bell Telephone Laboratories, Incorporated Electret transducer with variable actual air gap
US4429192A (en) * 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Electret transducer with variable electret foil thickness
US4429191A (en) * 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Electret transducer with variably charged electret foil
US4429190A (en) * 1981-11-20 1984-01-31 Bell Telephone Laboratories, Incorporated Continuous strip electret transducer array
JPS5939198A (en) * 1982-08-27 1984-03-03 Victor Co Of Japan Ltd Microphone device
US4485484A (en) * 1982-10-28 1984-11-27 At&T Bell Laboratories Directable microphone system
US4555598A (en) * 1983-09-21 1985-11-26 At&T Bell Laboratories Teleconferencing acoustic transducer
US4747132A (en) * 1984-04-09 1988-05-24 Matsushita Electric Industrial Co., Ltd. Howling canceller
US5029215A (en) * 1989-12-29 1991-07-02 At&T Bell Laboratories Automatic calibrating apparatus and method for second-order gradient microphone
FR2688644B1 (en) * 1992-03-11 1997-05-23 Blanchet Vincent MICROPHONE WITH FRACTIONAL SENSOR.
US5426510A (en) * 1992-06-05 1995-06-20 Dolman Associates, Inc. Audio-video system
US5732143A (en) * 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
US5657393A (en) * 1993-07-30 1997-08-12 Crow; Robert P. Beamed linear array microphone system
DE69523243T2 (en) * 1994-03-24 2002-07-11 Koninklijke Philips Electronics N.V., Eindhoven AUDIOVISUAL DEVICE AND THIS USING SYSTEM
US5862240A (en) * 1995-02-10 1999-01-19 Sony Corporation Microphone device
US5940118A (en) * 1997-12-22 1999-08-17 Nortel Networks Corporation System and method for steering directional microphones
US6526147B1 (en) * 1998-11-12 2003-02-25 Gn Netcom A/S Microphone array with high directivity
DE19943875A1 (en) 1999-09-14 2001-03-15 Thomson Brandt Gmbh Voice control system with a microphone array
US20030132950A1 (en) * 2001-11-27 2003-07-17 Fahri Surucu Detecting, classifying, and interpreting input events based on stimuli in multiple sensory domains
US20030174125A1 (en) * 1999-11-04 2003-09-18 Ilhami Torunoglu Multiple input modes in overlapping physical space
US6473514B1 (en) 2000-01-05 2002-10-29 Gn Netcom, Inc. High directivity microphone array
NZ502603A (en) * 2000-02-02 2002-09-27 Ind Res Ltd Multitransducer microphone arrays with signal processing for high resolution sound field recording
US20030048353A1 (en) * 2001-08-07 2003-03-13 Michael Kenoyer System and method for high resolution videoconferencing
US20030125959A1 (en) * 2001-12-31 2003-07-03 Palmquist Robert D. Translation device with planar microphone array
CA2374299A1 (en) * 2002-03-01 2003-09-01 Charles Whitman Fox Modular microphone array for surround sound recording
US20040264726A1 (en) * 2003-06-30 2004-12-30 Gauger Daniel M. Microphoning
US8170233B2 (en) 2004-02-02 2012-05-01 Harman International Industries, Incorporated Loudspeaker array system
GB0405790D0 (en) 2004-03-15 2004-04-21 Mitel Networks Corp Universal microphone array stand
TW200715147A (en) * 2005-10-03 2007-04-16 Omnidirectional Control Technology Inc Sound collection device of sound entering array
US7697827B2 (en) 2005-10-17 2010-04-13 Konicek Jeffrey C User-friendlier interfaces for a camera
JP4929740B2 (en) * 2006-01-31 2012-05-09 ヤマハ株式会社 Audio conferencing equipment
JP4747949B2 (en) * 2006-05-25 2011-08-17 ヤマハ株式会社 Audio conferencing equipment
US7584846B2 (en) 2007-12-21 2009-09-08 S.C. Johnson & Son, Inc. Shaped packaging for a refill
US8923529B2 (en) * 2008-08-29 2014-12-30 Biamp Systems Corporation Microphone array system and method for sound acquisition
NO332961B1 (en) * 2008-12-23 2013-02-11 Cisco Systems Int Sarl Elevated toroid microphone
CN102860039B (en) 2009-11-12 2016-10-19 罗伯特·亨利·弗莱特 Hands-free phone and/or microphone array and use their method and system
US8831248B2 (en) * 2010-08-04 2014-09-09 Nokia Corporation Apparatus with directivity pattern
US9443529B2 (en) 2013-03-12 2016-09-13 Aawtend, Inc. Integrated sensor-array processor
US10204638B2 (en) 2013-03-12 2019-02-12 Aaware, Inc. Integrated sensor-array processor
US10049685B2 (en) 2013-03-12 2018-08-14 Aaware, Inc. Integrated sensor-array processor
JP6132910B2 (en) * 2013-06-11 2017-05-24 Toa株式会社 Microphone device
JP6353700B2 (en) * 2014-05-20 2018-07-04 三菱電機インフォメーションネットワーク株式会社 Two-way communication system between long-distance points and two-way communication method between long-distance points
US9565493B2 (en) 2015-04-30 2017-02-07 Shure Acquisition Holdings, Inc. Array microphone system and method of assembling the same
US9554207B2 (en) 2015-04-30 2017-01-24 Shure Acquisition Holdings, Inc. Offset cartridge microphones
US9530426B1 (en) * 2015-06-24 2016-12-27 Microsoft Technology Licensing, Llc Filtering sounds for conferencing applications
US10367948B2 (en) 2017-01-13 2019-07-30 Shure Acquisition Holdings, Inc. Post-mixing acoustic echo cancellation systems and methods
EP3425925A1 (en) * 2017-07-07 2019-01-09 Harman Becker Automotive Systems GmbH Loudspeaker-room system
EP3804356A1 (en) 2018-06-01 2021-04-14 Shure Acquisition Holdings, Inc. Pattern-forming microphone array
US11297423B2 (en) 2018-06-15 2022-04-05 Shure Acquisition Holdings, Inc. Endfire linear array microphone
WO2020061353A1 (en) 2018-09-20 2020-03-26 Shure Acquisition Holdings, Inc. Adjustable lobe shape for array microphones
US11558693B2 (en) 2019-03-21 2023-01-17 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality
CN113841419A (en) 2019-03-21 2021-12-24 舒尔获得控股公司 Housing and associated design features for ceiling array microphone
US11438691B2 (en) 2019-03-21 2022-09-06 Shure Acquisition Holdings, Inc. Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition functionality
EP3973716A1 (en) 2019-05-23 2022-03-30 Shure Acquisition Holdings, Inc. Steerable speaker array, system, and method for the same
US11302347B2 (en) 2019-05-31 2022-04-12 Shure Acquisition Holdings, Inc. Low latency automixer integrated with voice and noise activity detection
TWI731391B (en) * 2019-08-15 2021-06-21 緯創資通股份有限公司 Microphone apparatus, electronic device and method of processing acoustic signal thereof
EP4018680A1 (en) 2019-08-23 2022-06-29 Shure Acquisition Holdings, Inc. Two-dimensional microphone array with improved directivity
US12028678B2 (en) 2019-11-01 2024-07-02 Shure Acquisition Holdings, Inc. Proximity microphone
US11552611B2 (en) 2020-02-07 2023-01-10 Shure Acquisition Holdings, Inc. System and method for automatic adjustment of reference gain
USD944776S1 (en) 2020-05-05 2022-03-01 Shure Acquisition Holdings, Inc. Audio device
US11706562B2 (en) 2020-05-29 2023-07-18 Shure Acquisition Holdings, Inc. Transducer steering and configuration systems and methods using a local positioning system
JP2024505068A (en) 2021-01-28 2024-02-02 シュアー アクイジッション ホールディングス インコーポレイテッド Hybrid audio beamforming system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB429022A (en) * 1933-10-23 1935-05-23 Alan Dower Blumlein Improvements in and relating to sound-transmission, sound-recording and sound-reproducing systems
FR883707A (en) * 1941-07-02 1943-07-13 Klangfilm Gmbh Directing sound devices
US2810786A (en) * 1950-06-12 1957-10-22 Siemens Ag Directional microphone system
GB996002A (en) 1960-11-01 1965-06-23 Emi Ltd Improvements in or relating to stereophonic sound translating arrangements
US3502811A (en) * 1967-12-11 1970-03-24 Bell Telephone Labor Inc Directional microphone with frequency independent beamwidth
FR1576149A (en) * 1968-08-07 1969-07-25
US3889227A (en) * 1972-09-22 1975-06-10 Tokyo Shibaura Electric Co Ultrasonic wave receiving apparatus
AT337280B (en) * 1974-10-24 1977-06-27 Saad Zaghloul Mohamed Gabr CIRCUIT ARRANGEMENT FOR SUPPRESSION OF ACOUSTIC FEEDBACK
GB1515533A (en) * 1975-08-20 1978-06-28 C S Antennas Ltd Aerials
US3992586A (en) * 1975-11-13 1976-11-16 Jaffe Acoustics, Inc. Boardroom sound reinforcement system
GB2008359B (en) 1977-11-03 1982-05-12 Post Office Audio teleconferecing
US4131760A (en) * 1977-12-07 1978-12-26 Bell Telephone Laboratories, Incorporated Multiple microphone dereverberation system

Also Published As

Publication number Publication date
NL181965B (en) 1987-07-01
JPS5698094A (en) 1981-08-07
DE3046416C2 (en) 1984-09-06
FR2472326A1 (en) 1981-06-26
JPS5925554B2 (en) 1984-06-19
NL181965C (en) 1987-12-01
FR2472326B1 (en) 1987-03-20
GB2066620A (en) 1981-07-08
US4311874A (en) 1982-01-19
CA1166166A (en) 1984-04-24
KR830004750A (en) 1983-07-16
IT8026676A0 (en) 1980-12-16
NL8006821A (en) 1981-07-16
KR850000659B1 (en) 1985-05-07
IT1134737B (en) 1986-08-13
DE3046416A1 (en) 1981-08-27

Similar Documents

Publication Publication Date Title
GB2066620B (en) Microphone arrays
GB2063008B (en) Loudspeaker sets
GB2062408B (en) Speaker
DE3070816D1 (en) Loud-speaker
GB2050111B (en) Variable-directivity microphone device
JPS55106571A (en) Ultrasoniccwave transducer
JPS55155248A (en) Transducer
GB2062406B (en) Variable-directivity microphone device
JPS5637621A (en) Electret
JPS5657910A (en) Transducer
GB2057225B (en) Piezo-electric loudspeaker
GB2048583B (en) Microphone connector
GB2046994B (en) Insulatorsemiconductor structure
DE3062465D1 (en) Linear-displacement transducer
GB2064265B (en) Microphone unit
GB2067378B (en) Electro-acoustic transducers
ZA797036B (en) Transducer
JPS5685994A (en) Electroacoustic transducer
GB2064263B (en) Microphone unit
JPS55137956A (en) Sheettshaped structure
JPS5696599A (en) Electroacoustic transducer
GB2051918B (en) Volume-enclosing structure
JPS5683827A (en) Transducer
GB2064264B (en) Microphone unit
GB2058181B (en) Underwater structure

Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20001215